Yes, you are correct, that should have been a dq. He went way outside of his lane.

Also it is a dq if you intentionally knock down your hurdles. He seemed to be doing just that. That would also be a dq. Incidentally knocking down a hurdle is acceptable. The bike guy needs to get enough height that he has a reasonable chance of clearing it without knocking it straight down, then they need to rerace.

It is clearly unfair as it is, he could have taken it to the extreme and simply popped a wheelie high enough to get his front tire against the cross bar, knocking the hurdle down, then ridden right over it. What he is currently doing is somewhere in between that and clearing it properly.

Still an entertaining race. Kind of like racing a giraffe in the 100m...